1. electromagnet is a permanent magnet that can attract any metal or magnetical 2. the number of coils of wire affects the magnetsm of an electro magnet more coils of wire means less magnetsm 3. an electromagnet can be made stronger by adding more coils of wire 4. when electricity stops flowing through a coil of wire, the nail continuesattracting any metal or magnetic material 5. an electro magnet may be produced by making electricity flow through a coil of wire wound around an iron nail 6.nothing can be done to increase the strength of an electromagnet 7. electromagnet is important in our every life 8. by using smaller core, we can increased the strength of an electromagnet 9. telephones buzzers and doorbels use an electro magnet 10. the coils should loop in one direction only
